.sk {
    position: relative;
    float: left;
    margin-left: 200px;
    margin-top: 40px;
    width: 57px;
    height: 28px;
    background-image: url('../images/sk.png');
    background-repeat: no-repeat;
}
.sk::before {
    content: '';
    position: absolute;
    left: -10px;
    height: 100%;
    width: 1px;
    background: #b1191a;
}
.navfirst ul li {
    float: left;
    margin: 0 25px;
    font-size: 18px;
    font-weight: bold;
    color: #000;
}
.listnavitems ul li{
    float: left;
    margin-left: 35px;
    margin-right: 10px;
}
.listnavitems ul li:nth-child(2) {
    color: #c81623;
}
.listnavitems ul li:nth-child(9)::after {
    content: "\e91e";
    font-family: 'icomoon';
}
.list {
    display: flex;
}
.sk-hd {
    height: 120px;
    background-image: url("../upload/bg_03.png");
    background-repeat: no-repeat;
}
.sk-bd {
    margin-top: 30px;
}
.sk-bd ul li {
    overflow: hidden;
    float: left;
    margin-right: 13px;
    width: 290px;
    height: 460px;
    border: 1px solid transparent;
}
.sk-bd ul li:hover {
    border: 1px solid red;
}
.sk-bd ul li:nth-of-type(4n) {
    margin-right: 0;
}